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Location:
North Brisbane
Registered:
October 2003
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4agte Injectors... what size is good?
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Thu, 09 October 2003 01:25
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i would like to know what is a good size injector for a turbo 4agze running between 7 to 17 psi?
thank you
dale...
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: 4agte Injectors... what size is good?
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Thu, 09 October 2003 01:39
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prolly the stock GZE injectors would suffice...
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 4agte Injectors... what size is good?
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Thu, 09 October 2003 01:50
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easy to work out.. go find one of the 'injector flow/horsepower' calculators floating round the net, work out how power you will be chasing, then work out what injector size 
oh, and be aware of injector size vs tiem to inject.
80% duty cycle at 8000rpm is only 12ms so you need injectors big enough to do that (or staged injection).
for example, i only need 145cc/min to go to 6000rpm, but for 8000rpm, i need 185cc/min, due to the time available.
Cya, Stewart
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Registered:
May 2002
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Re: 4agte Injectors... what size is good?
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Thu, 09 October 2003 02:00
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My ZE injectors were ALMOST maxed at 15psi (156rwkw). I didn't want to push the standard injectors right to the limit everyday. I switched to 7MGTE injectors, which flow enough fuel to run over 20psi boost (I only run between 10 and 17psi daily though).
There are a number of other injectors that fit eg 13B Turbo items.
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Location:
North Brisbane
Registered:
October 2003
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Re: 4agte Injectors... what size is good?
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Sun, 12 October 2003 23:09
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cool, i have a few 7m injectors floating around. i will put them in
dale...
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Location:
Perth, WA
Registered:
February 2003
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Re: 4agte Injectors... what size is good?
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Mon, 13 October 2003 04:17
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I was told that CA18DET injectors are good for turbo 4AGZE's running around that boost. They are 380cc/min I believe. That's what's on my car; I run 15psi and I think they are at about 75% duty cycle.
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Location:
Canberra
Registered:
May 2002
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Re: 4agte Injectors... what size is good?
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Mon, 13 October 2003 11:55
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What turbo are you planning to run at 17psi boost? There's more to it than just the boost level....
I run mazda 13B 550cc injectors, they are probably a bit large, at only 75% duty on 20psi with a garrett T28 (S14 200SX).
I've tested CA18DET injectors at 420cc (100% duty, 38psi fuel pressure)
7MGTE "should" be around 430cc
Phil
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